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PDF에서 계약 세부 정보를 추출하고 Slack, GPT-4o, Google Sheets에 정리

고급

이것은Document Extraction, AI Summarization, Multimodal AI분야의자동화 워크플로우로, 19개의 노드를 포함합니다.주로 Slack, Switch, HttpRequest, GoogleSheets, SlackTrigger 등의 노드를 사용하며. PDF에서 계약 세부 정보 추출 및 Slack, GPT-4o, Google Sheets에 정리

사전 요구사항
  • Slack Bot Token 또는 Webhook URL
  • 대상 API의 인증 정보가 필요할 수 있음
  • Google Sheets API 인증 정보
  • OpenAI API Key
워크플로우 미리보기
노드 연결 관계를 시각적으로 표시하며, 확대/축소 및 이동을 지원합니다
워크플로우 내보내기
다음 JSON 구성을 복사하여 n8n에 가져오면 이 워크플로우를 사용할 수 있습니다
{
  "meta": {
    "instanceId": "e04cc86c30b0cecda8e6bbc7cc41459d9bf4d76816638a14d42d636b91913ebc",
    "templateCredsSetupCompleted": true
  },
  "nodes": [
    {
      "id": "af0cd5b9-3301-4668-93ec-71e1033d3778",
      "name": "출력 구조화",
      "type": "@n8n/n8n-nodes-langchain.outputParserStructured",
      "position": [
        544,
        160
      ],
      "parameters": {
        "jsonSchemaExample": "[{\n\t\"Client\": \"XYZ Inc\",\n\t\"Service Provider\": \"ABC Inc\",\n  \"Effective Date\": \"2025/04/29\",\n  \"Expiration Date\" : \"2025/05/29\",\n  \"Signature Date\" : \"2025/05/29\",\n  \"Contract Value\": \"11,000\"\n}]"
      },
      "typeVersion": 1.3
    },
    {
      "id": "c02b6fd7-70d6-47ae-8ea5-2c1ead2e17da",
      "name": "AI 모델",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        400,
        160
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o",
          "cachedResultName": "gpt-4o"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "vWYprn1xB4TGPXdo",
          "name": "OpenAi account 2"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "c506d41b-aec6-48ad-a33e-15b02e256bb1",
      "name": "계약 파일 수신",
      "type": "n8n-nodes-base.slackTrigger",
      "position": [
        -640,
        32
      ],
      "webhookId": "0c333af6-a04b-489e-b267-e60cb4664128",
      "parameters": {
        "options": {},
        "trigger": [
          "message"
        ],
        "channelId": {
          "__rl": true,
          "mode": "list",
          "value": "C09EG2EN9AA",
          "cachedResultName": "contract"
        }
      },
      "credentials": {
        "slackApi": {
          "id": "VLK4L2mMCF7UFZXF",
          "name": "Slack account 4"
        }
      },
      "notesInFlow": false,
      "typeVersion": 1
    },
    {
      "id": "df8d6f3e-4f5c-4c58-8967-87180c27c8b5",
      "name": "파일 형식 확인",
      "type": "n8n-nodes-base.switch",
      "position": [
        -400,
        16
      ],
      "parameters": {
        "rules": {
          "values": [
            {
              "outputKey": "PDF",
              "conditions": {
                "options": {
                  "version": 2,
                  "leftValue": "",
                  "caseSensitive": true,
                  "typeValidation": "strict"
                },
                "combinator": "and",
                "conditions": [
                  {
                    "id": "3540ad45-eb8f-47c8-9942-c1670ec8acc0",
                    "operator": {
                      "type": "string",
                      "operation": "equals"
                    },
                    "leftValue": "={{ $json.files[0].filetype }}",
                    "rightValue": "pdf"
                  }
                ]
              },
              "renameOutput": true
            },
            {
              "outputKey": "WORD",
              "conditions": {
                "options": {
                  "version": 2,
                  "leftValue": "",
                  "caseSensitive": true,
                  "typeValidation": "strict"
                },
                "combinator": "and",
                "conditions": [
                  {
                    "id": "659d35f5-0ae3-4a75-9744-8a776a6b0391",
                    "operator": {
                      "name": "filter.operator.equals",
                      "type": "string",
                      "operation": "equals"
                    },
                    "leftValue": "={{ $json.files[0].filetype }}",
                    "rightValue": "docx"
                  }
                ]
              },
              "renameOutput": true
            },
            {
              "outputKey": "Others",
              "conditions": {
                "options": {
                  "version": 2,
                  "leftValue": "",
                  "caseSensitive": true,
                  "typeValidation": "strict"
                },
                "combinator": "and",
                "conditions": [
                  {
                    "id": "1d14871d-5607-4315-b9c8-01eeacf2f916",
                    "operator": {
                      "name": "filter.operator.equals",
                      "type": "string",
                      "operation": "equals"
                    },
                    "leftValue": "",
                    "rightValue": ""
                  }
                ]
              },
              "renameOutput": true
            }
          ]
        },
        "options": {}
      },
      "typeVersion": 3.2
    },
    {
      "id": "6a259139-f6be-42f0-9018-8e3466a28742",
      "name": "PDF 다운로드",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        -48,
        -160
      ],
      "parameters": {
        "url": "={{ $json.files[0].url_private_download }}",
        "options": {
          "response": {
            "response": {
              "responseFormat": "file"
            }
          }
        },
        "authentication": "predefinedCredentialType",
        "nodeCredentialType": "slackApi"
      },
      "credentials": {
        "slackApi": {
          "id": "gLK2woy6bUlX7kdV",
          "name": "Slack account"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "0407b590-908d-4d11-8fbb-6ff8a8e93a30",
      "name": "PDF에서 텍스트 추출",
      "type": "n8n-nodes-base.extractFromFile",
      "position": [
        176,
        -160
      ],
      "parameters": {
        "options": {},
        "operation": "pdf",
        "binaryPropertyName": "=data"
      },
      "typeVersion": 1
    },
    {
      "id": "71b2b5e9-ea55-4985-8c56-561b14fb02df",
      "name": "Word를 PDF로 변환",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        -48,
        32
      ],
      "parameters": {
        "url": "={{ $json.files[0].converted_pdf }}",
        "options": {
          "response": {
            "response": {
              "responseFormat": "file"
            }
          }
        },
        "authentication": "predefinedCredentialType",
        "nodeCredentialType": "slackApi"
      },
      "credentials": {
        "slackApi": {
          "id": "gLK2woy6bUlX7kdV",
          "name": "Slack account"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "ab96f6e9-eb93-4b16-ae44-85eb8f3e0c77",
      "name": "PDF에서 텍스트 추출1",
      "type": "n8n-nodes-base.extractFromFile",
      "position": [
        176,
        32
      ],
      "parameters": {
        "options": {},
        "operation": "pdf",
        "binaryPropertyName": "=data"
      },
      "typeVersion": 1
    },
    {
      "id": "0050c560-3da1-4ad1-ae77-933bf857c780",
      "name": "오류 메시지 전송",
      "type": "n8n-nodes-base.slack",
      "position": [
        -48,
        176
      ],
      "webhookId": "97cb885e-d1af-4a93-8e27-a4bf6000ca99",
      "parameters": {
        "text": "=Only PDF or Word format contracts can be uploaded.",
        "select": "channel",
        "channelId": {
          "__rl": true,
          "mode": "list",
          "value": "C09EG2EN9AA",
          "cachedResultName": "contract"
        },
        "otherOptions": {}
      },
      "credentials": {
        "slackApi": {
          "id": "VLK4L2mMCF7UFZXF",
          "name": "Slack account 4"
        }
      },
      "typeVersion": 2.3
    },
    {
      "id": "ca620d80-1959-4d72-95a1-2df99125b248",
      "name": "계약 내용 분석",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        400,
        -64
      ],
      "parameters": {
        "text": "=please read and understand the input data({{ $json.text }}). I would like you to extract Client, Service Provider, Effective Date, Expiration Date, Signature Date and Contract Value. ",
        "options": {
          "systemMessage": ""
        },
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 2.1
    },
    {
      "id": "ff81dc90-bc72-4b4f-9751-432399ddfedf",
      "name": "Google Sheets에 저장",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        752,
        -64
      ],
      "parameters": {
        "columns": {
          "value": {
            "Client": "={{ $json.output[0].Client }}",
            "Contract Value": "={{ $json.output[0]['Contract Value'] }}",
            "Effective Date": "={{ $json.output[0]['Effective Date'] }}",
            "Signature Date": "={{ $json.output[0]['Signature Date'] }}",
            "Expiration Date": "={{ $json.output[0]['Expiration Date'] }}",
            "Service Provider": "={{ $json.output[0]['Service Provider'] }}"
          },
          "schema": [
            {
              "id": "Client",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "Client",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "Service Provider",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "Service Provider",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "Effective Date",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "Effective Date",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "Expiration Date",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "Expiration Date",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "Signature Date",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "Signature Date",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "Contract Value",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "Contract Value",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            }
          ],
          "mappingMode": "defineBelow",
          "matchingColumns": [],
          "attemptToConvertTypes": false,
          "convertFieldsToString": false
        },
        "options": {},
        "operation": "append",
        "sheetName": {
          "__rl": true,
          "mode": "list",
          "value": "gid=0",
          "cachedResultUrl": "https://docs.google.com/spreadsheets/d/1ggkr6gOWmzcIbqBVuh-HVkKVvBaFj-WuYsprlMPMfOk/edit#gid=0",
          "cachedResultName": "sheet1"
        },
        "documentId": {
          "__rl": true,
          "mode": "list",
          "value": "1ggkr6gOWmzcIbqBVuh-HVkKVvBaFj-WuYsprlMPMfOk",
          "cachedResultUrl": "https://docs.google.com/spreadsheets/d/1ggkr6gOWmzcIbqBVuh-HVkKVvBaFj-WuYsprlMPMfOk/edit?usp=drivesdk",
          "cachedResultName": "contract_management_sheet"
        }
      },
      "credentials": {
        "googleSheetsOAuth2Api": {
          "id": "OADOUEa3B96W0iqk",
          "name": "Google Sheets account 2"
        }
      },
      "typeVersion": 4.7
    },
    {
      "id": "1b8f9d44-5c0a-4eb9-aace-509fec6337fc",
      "name": "Slack에 알림",
      "type": "n8n-nodes-base.slack",
      "position": [
        976,
        -64
      ],
      "webhookId": "d443ab23-594e-48f7-bf05-b85e81c967f7",
      "parameters": {
        "text": "=---\nClient: {{ $json.Client }}\nService Provider: {{ $json['Service Provider'] }}\nExpiration Date: {{ $json['Expiration Date'] }}\nEffective Date: {{ $json['Effective Date'] }}\nSignature Date: {{ $json['Signature Date'] }}\nContract Value: {{ $json['Contract Value'] }}",
        "select": "channel",
        "channelId": {
          "__rl": true,
          "mode": "list",
          "value": "C09EG2EN9AA",
          "cachedResultName": "contract"
        },
        "otherOptions": {}
      },
      "credentials": {
        "slackApi": {
          "id": "VLK4L2mMCF7UFZXF",
          "name": "Slack account 4"
        }
      },
      "typeVersion": 2.3
    },
    {
      "id": "1c065db0-d6b2-40ae-a2e3-5c5581be0db6",
      "name": "스티커 노트",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -496,
        -240
      ],
      "parameters": {
        "width": 288,
        "height": 480,
        "content": "## 2. Check file format\n\n- PDF → Go to Download PDF\n- Word → Go to Convert Word to PDF\n- Others → Send Error Message\n\n\n**Note**: Contracts are generally created in PDF or Word format, so only these two formats are supported."
      },
      "typeVersion": 1
    },
    {
      "id": "d3422fd9-df2d-48bb-bada-b631843758b4",
      "name": "스티커 노트1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -832,
        -240
      ],
      "parameters": {
        "width": 288,
        "height": 480,
        "content": "## 1. Receive Contract File\n\n📃This node receives a contract file uploaded via Slack.\n📃The file is then passed to the workflow for format checking and further processing."
      },
      "typeVersion": 1
    },
    {
      "id": "3f441264-8120-43ea-ad29-4e8de52b9b39",
      "name": "스티커 노트2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -96,
        -240
      ],
      "parameters": {
        "width": 416,
        "height": 576,
        "content": "## 3. Transform file into text\n"
      },
      "typeVersion": 1
    },
    {
      "id": "f14068f8-e327-4bcd-8c72-d684faba5dd4",
      "name": "스티커 노트3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        368,
        -240
      ],
      "parameters": {
        "width": 304,
        "height": 576,
        "content": "## 4. Analyze Contract Content\n"
      },
      "typeVersion": 1
    },
    {
      "id": "b38f1853-a844-43ae-92fb-c4169a495541",
      "name": "스티커 노트4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        688,
        -240
      ],
      "parameters": {
        "width": 224,
        "height": 368,
        "content": "## 5. Save to Google Sheets\n"
      },
      "typeVersion": 1
    },
    {
      "id": "d55089f4-7887-4875-852c-e740db02344c",
      "name": "스티커 노트5",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        928,
        -240
      ],
      "parameters": {
        "width": 256,
        "height": 368,
        "content": "## 6. Notify on Slack"
      },
      "typeVersion": 1
    },
    {
      "id": "013d03b1-ebc7-41cf-973b-49fb6968f7eb",
      "name": "스티커 노트6",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -1456,
        -496
      ],
      "parameters": {
        "width": 576,
        "height": 1392,
        "content": "## Extract and Manage Contracts with Slack, GPT-4o, and Google Sheets.\n\nManaging contracts manually is time-consuming and prone to human error, especially when documents need to be shared, tracked, and stored across different tools. This workflow automates the entire process by capturing contract PDFs and Words uploaded to Slack, extracting key information with GPT, and organizing the data into a structured format inside Google Sheets. Essential fields such as client, service provider, contract value, and important dates are automatically parsed and logged, eliminating repetitive manual entry. Once the data is saved, a confirmation message is posted back to Slack so your team can quickly verify that everything has been recorded accurately.\n\n## Who’s it for\nThis workflow is ideal for operations teams, legal departments, or growing businesses that manage multiple contracts and want to maintain accuracy without spending hours on administration. By integrating Slack, GPT, and Google Sheets, you gain a simple but powerful contract management system that reduces risk, improves visibility, and keeps everyone aligned. Instead of scattered files and manual spreadsheets, you have a single automated pipeline that ensures your contract data is always up to date and accessible.\n\n## How it works\n- The workflow is triggered when a contract in PDF or Word format is shared in the designated Slack channel.\n- The uploaded file is automatically retrieved for processing.\n- Its content is extracted and converted into plain text.\n- If the file is not in PDF or Word format, an error message is sent.\n- GPT interprets the extracted text and structures the essential fields (e.g., Client, Service Provider, Effective Date, Expiration Date, Signature Date, Contract Value).\n- The structured contract information is appended as a new row in the contract tracker spreadsheet on Google Sheets.\n- A summary of the saved data is posted back to Slack for quick validation.\n\n## How to set up\n- You need to import this workflow into your n8n instance.\n- You must authenticate your Slack account and select the target channel for contract submissions.\n- You should link your Google account and specify the spreadsheet where the contract data will be stored. In this template, the required columns are Client, Service Provider, Effective Date, Expiration Date, Signature Date, and Contract Value.\n- You can adjust the GPT parsing prompt to match the specific fields that your organization requires.\n- You upload a sample contract in PDF or Word format to Slack and verify that the extracted data is correctly recorded in Google Sheets.\n\n## Requirements\n- You must have an active n8n instance in the cloud.\n- You need a Slack account with permission to upload files and send messages.\n- You must use a Google Sheets account with edit access to the target spreadsheet.\n- You need a GPT integration (e.g., OpenAI) to enable AI-powered text parsing.\n\n## How to customize the workflow\nYou can modify this workflow to fit your organization’s unique contract needs. For example, you may update the GPT parsing prompt to capture additional fields, change the target Google Sheets structure, or integrate notifications into other tools. You have full flexibility to expand or simplify the steps so the workflow matches your team’s processes and compliance requirements.\n"
      },
      "typeVersion": 1
    }
  ],
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}
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이 워크플로우는 완전히 무료이며 직접 가져와 사용할 수 있습니다. 다만, 워크플로우에서 사용하는 타사 서비스(예: OpenAI API)는 사용자 직접 비용을 지불해야 할 수 있습니다.

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고급 사용자를 위한 16+개 노드의 복잡한 워크플로우

저자
Toshiki Hirao

Toshiki Hirao

@hirao

dTosh Inc., CEO Nara Institute of Science and Technology, Assistant Professor

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